Dennis McKenna

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Dennis Jon McKenna (born December 17, 1950) is an American ethnopharmacologist, author and brother to well-known psychedelics proponent Terence McKenna.

Early life[edit]

McKenna received his Master's degree in botany at the University of Hawaii in 1979. He received his Doctorate in Botanical Sciences in 1984 from the University of British Columbia, where he wrote a dissertation entitled Monoamine oxidase inhibitors in Amazonian hallucinogenic plants: ethnobotanical, phytochemical, and pharmacological investigations.[citation needed]


McKenna's research led to the development of natural products for Aveda Corporation as well as greater awareness of natural products and medicines. He has authored numerous scientific articles and books. He co-authored The Invisible Landscape with his brother Terence and Botanical Medicines: the Desk Reference for Major Herbal Supplements with Kenneth Jones and Kerry Hughes. McKenna spent a number of years as a senior lecturer for the Center for Spirituality and Healing, part of the Academic Health Center at the University of Minnesota, Twin Cities. He is now a senior research scientist for the Natural Health Products Research Group at the British Columbia Institute of Technology in the Vancouver area.[citation needed]

His research has included the pharmacology, botany, and chemistry of ayahuasca and oo-koo-hé, the subjects of his master's thesis. He has also conducted extensive fieldwork in the Peruvian, Colombian, and Brazilian Amazon.[citation needed]


McKenna's memoir, The Brotherhood of the Screaming Abyss about his and his brother Terence's life and journeys together, was published in 2012.[1]

He is featured in the documentary "DMT: The Spirit Molecule".[2]

McKenna participated in the first Evolver Convergence 2012 in Pittsburgh, June 1–4.[3]

Main guest several times on popular radio show Coast to Coast AM. His last appearance on the show was the November 25, 2012 episode.

On December 16, 2012, McKenna was the guest on The Joe Rogan Experience podcast.[4]

See also[edit]


  1. ^ Dennis McKenna (April 7, 2011), The Brotherhood of the Screaming Abyss!,, retrieved 2012-12-25 
  2. ^ "Full cast and crew", DMT: The Spirit Molecule (IMDb), 2010 
  3. ^ The Evolver Convergence, Facebook, retrieved 2012-12-25 
  4. ^ Joe Rogan Podcast No. 298 – Dennis McKenna on YouTube

External links[edit]